Curious: is it at all possible for a user to write...

# announcements

[Nir]

Curious: is it at all possible for a user to write a function/extension function, that does something similar to what += does for Map? I would guess "no" because inside a function you can't "reseat" anything passed in. But it would be nice if there was some way; the same way that x += y saves you writing x = x +y. You could imagine for immutable data classes, instead of writing x = x.copy("name"="John"), it would be nice if you could write x += copy("name" = "John") or something like that